Re: [Gumstix-users] TVP514x, 3.5 Kernel, Yocto

[<ge...@th...>]

I also see this message in the dmesg output:

media: exports duplicate symbol media_device_register (owned by kernel)




> I have made the changes and tried to get things working but the media-ctl
> commang says "media_parse_setup_link: Unable to parse link". Any thoughts?
>
>> I have a set of patches for the tvp5151 that I use with a 3.5 kernel
>> here:
>>
>> http://www.sleepyrobot.com/?p=253
>>
>> (I also have some of the tvp5151 boards.)
>>
>> You need to patch board-overo and the isp driver.
>>
>> I also sent a working unit to Laurent Pinchart, in hopes that he would
>> help
>> get interlaced bt656 for the omap into the mainline.
>>
>> -chris
>>
>>
>>
>> On Wed, Feb 13, 2013 at 7:24 AM, <ge...@th...> wrote:
>>
>>> Hello,
>>>
>>>   I have been working with the gumstix board for a few months now with
>>> the
>>> goal of interfacing with a TVP514x series video input IC.
>>>
>>>   The IC is installed onto a board from econsystems:
>>>
>>> http://www.e-consystems.com/NTSC-PAL-Video-Decoder-Board-Gumstix.asp
>>>
>>>   I am working with yocto and the latest kernel within. I have a build
>>> working now that has DSP support, TVP514x drivers in the kernel, and
>>> this all tests well.
>>>
>>>   The next step is to enable the TVP514x device over I2C and setup the
>>> V4L
>>> interface. From what I have read it appears that media-ctl can
>>> initialize this interface, so I added this to my recipie. However
>>> media-ctl does not show the TVP device on its listing and gives errors
>>> when I try to initialize.
>>>
>>>   My next thought is to perform some I2C debugging to ensure that the
>>> device is talking. I tried this using u-boot but I am not certain of
>>> what I should read from the IC.
>>>
>>>   Last night I started reading the code in board-overo.c and noticed
>>> that
>>> it initializes some devices (even over I2C), so I ask, do I need to
>>> author support in board-overo.c for the TVP514x device, or is there
>>> something else that I am missing?
>>>
>>>   Can anyone help by providing debug commands that I could use to work
>>> through what is happening and what needs to be done next?
>>>
>>> Thank-you very much,
>>> -Geoff
>>>
>>>
>>>
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>
>
>
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